Comment 6 for bug 385325

I've been talking with Alexander Sac. As it stands, Thunderbird 3 properly works, and there has been no code changes that could explain the working behavior in mult() or Balloc(); there have been considerable changes elsewhere in Thunderbird 3, which would make isolating the specific change to correct the segfault extremely difficult, and time consuming, and even if the specific commit is isolated, it may not be backport-able.

According to asac, TB 2 is mostly inactive, and its unlikely there would be consider help in resolving this issue; and searching the Mozilla bugzilla has not turned up any bugs opened or provided any clues on what was changed to fix the crash in TB3.